T-Mobile will limit LTE roaming in Canada and Mexico to 5GB starting November 12
One of T-Mobile's big “uncarrier” moves was to offer international roaming data to most customers for free. However, Canada and Mexico were special cases where you'd get full-speed LTE data on most plans.
Context & Ripple Effects
The free cross-border roaming T-Mobile is now capping was itself a growth weapon: back in July 2015 the carrier paired its claim of overtaking Sprint with cutting roaming charges in Mexico and Canada, making full-speed North American data a headline perk. The November 12 change walks back the most expensive slice of that promise.
It also fits a longer pattern at T-Mobile of qualifying 'unlimited': in 2015 it moved users off unlimited plans for exceeding a 7GB tethering limit, and its 2016 $70 plan put HD video behind a $25 upcharge. Each time, the marketing word stayed while the practical ceiling shrank.
First-order effects
- Customers on most T-Mobile plans who use LTE data in Canada or Mexico will hit a 5GB monthly ceiling after November 12, ending the full-speed roaming that made cross-border travel a differentiator for the carrier.
- T-Mobile directly reduces its wholesale roaming costs to Canadian and Mexican partner networks, which had scaled with every heavy-usage customer crossing the border.
Second-order effects
- Cross-border roaming perks become a competitive lever again: Sprint — the rival T-Mobile claimed to have passed on subscribers when it cut those roaming charges — and other US carriers can pitch their own North America data terms against a newly limited T-Mobile offer.
- Frequent travelers and border-region customers face a renewed reason to comparison-shop plans or carry local SIMs, pressuring T-Mobile to offset the cap with add-ons or higher-tier pricing.
Third-order effects
- If the pattern holds — tethering limits enforced in 2015, HD video paywalled in 2016, roaming capped in 2017 — 'unlimited' becomes a marketing label defined by carve-outs rather than a product guarantee, inviting closer regulatory and advertising scrutiny of how carriers define the term.
- The episode points toward roaming economics being repriced into plan tiers explicitly, replacing flat 'free international data' promises with metered allowances as cross-border usage normalizes.
The trend: Carrier 'unlimited' promises are being incrementally re-capped through carve-outs and thresholds as real-world data usage makes them uneconomic to honor.